bubusmecherul Posted January 3, 2015 Share Posted January 3, 2015 am primit acest tv nokia 5521 ps vt ideal color,cu componente TDA8372A, SAA1289D-R632,TDA3561A,TDA3590D,cu defectul,,sunet este,dar imagine rosu cu cursa inversa,si la cateva secunde se schimba culoarea in verde,albastru,cand iar rosu,si tot asa,daca misc placa TK de la tub se schimba culorile mai rapid,dar tot cu cursa inversa si fara imagine,am schimbat cei doi condesatori de pe TK,si aproape toti din sursa si de pe langa traf,ce sa mai verific, si ce sasiu este,va rog ma ajuta careva. Link to comment
dan cod Posted January 3, 2015 Share Posted January 3, 2015 Lăsa condensatorii si refă lipiturile si măsoară tensiuni. Link to comment
bubusmecherul Posted January 3, 2015 Author Share Posted January 3, 2015 am relipi toata placa tkdom dan,am gasit o rezistenta pe placa tk,si anume R04, ce este pe bara regulatorului de G2,care mi se pare ca este defecta stiti cumva ce rezistenta este,ce valoare aceasta rezistenta. un manual service va rog,de unde descarc Link to comment
santamihai Posted January 3, 2015 Share Posted January 3, 2015 http://elektrotanya.com/nokia_5521_sch_poor-quality.djv/download.html Link to comment
bubusmecherul Posted January 3, 2015 Author Share Posted January 3, 2015 cu ce naiba deschid acest pdf,ca cu adobe nu merge. Link to comment
bubusmecherul Posted January 3, 2015 Author Share Posted January 3, 2015 stie careva ce valoare R04,de pe placa tk,pe schema nu o vad,este de culoare. maro negru abastru galben Link to comment
mariantoader82 Posted January 3, 2015 Share Posted January 3, 2015 Conform codului culorilor 10 Mohm. Link to comment
bubusmecherul Posted January 4, 2015 Author Share Posted January 4, 2015 ok,am puso inapoi,asa este cum ati spus,am lipit toata placa TK,tensiuni este pe placa de TK, 12v,187v,g2=300v,G1=-4,50v,aceste tensiuni sant,dar de ce nu vrea sa dispara acea cursa inversa pe fond albastru,cand rosu cand mov,si mai multe culori se schimba,va rog. Link to comment
bubusmecherul Posted January 4, 2015 Author Share Posted January 4, 2015 (edited) ce echivalent are bf420 si s671t,acest sant pe placa TK.si am gasit unul din cei trei s671t,ce echivalent are va rog mult. Edited January 4, 2015 by bubusmecherul Link to comment
bubusmecherul Posted January 4, 2015 Author Share Posted January 4, 2015 darnu zice nimeni ce echivalent are S671T,va rog Link to comment
santamihai Posted January 4, 2015 Share Posted January 4, 2015 http://alltransistors.com/crsearch.php?mat=Si&struct=NPN&pc=7&ucb=300&uce=275&ueb=5&ic=0.05&tj=150&ft=60&cc=1.8&hfe=50&caps=TO202 Link to comment
bubusmecherul Posted January 4, 2015 Author Share Posted January 4, 2015 nu am decat bf869 merge cumva. Link to comment
modoran Posted January 4, 2015 Share Posted January 4, 2015 (edited) Da, merge. Schimba-i pe toti 3 daca vrei sa faci treaba buna. Vezi ca finalii video nu se ard chiar degeaba, posibil tensiune video marita sau descarcari in interiorul tubului. Eu imi aduc aminte ca ai mai avut acest defect, chiar nu vrei sa inveti si tu ceva sau condsideri forumul un fel de gogle specializat ? Edited January 4, 2015 by modoran Link to comment
bubusmecherul Posted January 4, 2015 Author Share Posted January 4, 2015 schimb toti,sa schimb oare si soklul,ca in timp ce se schimba culoarea se aude ceva la tub. Link to comment
modoran Posted January 4, 2015 Share Posted January 4, 2015 NU cred ca e soclul, totusi nu strica sa-l schimbi si pe el. Daca banuiala se confirma si descarcarile sunt in interiorul tubului atunci tub defect. Link to comment
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